[7.x] Upgrade fp-ts to 2.8.6 (#83866)#84436

Merged

rudolf merged 1 commit intoelastic:7.xfrom rudolf:backport/7.x/pr-83866

Nov 26, 2020

+14-105

Commits on Nov 26, 2020

Upgrade fp-ts to 2.8.6 (elastic#83866 )

committed